Build and deliver high-quality applications, from development to testing to deployment
Expert freelance services for software development, test automation, and DevOps
Meet Dennis
As a freelancer and consultant, I work with tech organizations worldwide to help them build effective, high-quality software. It's my mission to help these companies get their idea off the ground quickly and in the right way for the long haul.
For over 20 years, I've worked with startups and other tech companies across the globe to help them successfully build effective, high-quality software. My experience comes from working with early-stage companies in New York City, San Francisco, Tokyo, and remotely with dozens of organizations around the world.
My main areas of focus are full-stack web development, test automation, and DevOps. I love sharing my thoughts and expertise around test automation on my blog, Dev Tester, and have written a book on the same topic.
What others say about working with me
Latest Articles
Software Engineering and DevOps articles containing expert insights, tutorials, and resources for tech professionals
Do you have Rubocop on your Ruby on Rails application? Here are some ways to run it early and often to maintain your code for the long haul.
Overwhelmed after setting up Rubocop in your legacy Rails apps? Here are some tips to clean up your old codebase for long-term maintainability.
Improve the consistency and quality of the code for your existing projects without blocking your team by using these strategies.
Free Resources
Dive into our collection of free resources to help your business excel
Your test automation might cost you much more money than you expect. Get this free guide today to learn about these problems and take steps to maximize your investment in automated testing.
Find out how to hire the right DevOps engineer with this free guide to boost your organization's ability to deliver high-quality products and ensure it can tackle any technological challenges that come its way.
Are you tired of receiving hefty bills from AWS every month? Download this free guide and begin taking small steps to help reduce your AWS bill and cut down on unnecessary cloud expenses today.
Some of my work
End-to-End Testing with TestCafe
Learn how to build robust end-to-end tests on a real web application using TestCafe. Let the End-to-End Testing with TestCafe book be your guide to learn how to use TestCafe for writing effective end-to-end tests for any web application. Improve the quality of your code, boost your confidence in your work, and deliver faster with fewer bugs.
Dev Tester
The Dev Tester blog contains articles about automated testing and test automation. Since 2020, I've been writing to help others become a better tester.
Serverless Video Clipper
A serverless application provisioned with Terraform for creating a fully-automated video clipping service on AWS.
Airport Gap
A Ruby on Rails application built to help developers and testers practice and improve their automated API testing skills on a real website.
Let's talk
Whether you want to schedule a call with me or have a question I can help with, send me a message and I'll get back to you in less than 24 hours.